Spring-board holder.



J. F. BOORAEM.

SPRING BOARD HOLDER.

NPL10/111011 FILED 11.1Y4,1911.

1,250,951, Patented Dee. 25,1917.

2 SHEETS-SHEET l.

A TTOHNE Y I. F. BOORAEM.

SPRING BOARD HOLDER.

APPLICATION FILED MAY 4. |917.

Patented Dee. 25,1917.

2 SHEETS-SHEET 2.

. 3 Q Q 'Q m if I A TTU/MIEI UNITED STATES ll-)Allflhl'l OFFICE.

Y JOHN FRANCIS BooRAEM. or GREENwIomfcoNNEo'rIoUT.

srnING-Boiinn Homann.

To all rwhom it may concern:

Be it known l*that I, JOHN FRANCIS BOORAEM, a citizen oftheUnited States of America, residing in Greenwich, in.' the county of Fairfield and State of Connecticut, haveinvented certain new and useful Improvements in Spring-Board Holders, of

i Which the following isa specification.

This invention relates to springboard holders, particularly for use in connection i with swimming pools, and vhas for its object to provide an improved construction of relatively inexpensive character and with eth1 cient appliances for `(securing theV springboard and elfecting proper adjustments. At the same time, it has been my aim to protect against contact with water, all thosev parts of the apparatus which would be injured thereby. V Y i c A typical example of my improved springl board holder is shown in the accompanying drawings, in which- Figure 1 is a side elevation of the new springboard holder;

Fig. 2 is a longitudinal vertical section on line 2-2 of Fig. 4; Y

Fig. 3 is a front elevation; Fig. l1 is across section on line 4 4: of

' Fig. 2, with parts broken away, and

Figs..5'and 6 are cross sections along the lines 54-5 and 6-6 of Fig.' 2, showing the springboard and adjacent parts.

The improved springboard holder comprises a suitable frame made of a lowerV section 10, which is securedl to the floor by anchoring bolts 11, and an upper section 12 connected with the 'lower section by bolts and nuts 13. The upper section is formed so as to inclose a chamber or cavity 12 for vthe reception of one end .of the springboard (indicated by dotted lines at 14, Figs.` 1 and 2). This chamber has a roof inclined length-` wise, downwardly'from the opening through which the springboard projects. At the central portion of this roof, in the vicinity of said opening, a transverse dowel pin 12 extends downwardly, and about half way between the longitudinal center and the Y sides of the chamber 12', longitudinal downwardly projecting springs 15 have their ends secured, as by screws -16 accessible from above, within suitable longitudinal recesses 12l of said roof, the central portions of the springs projecting from said recesses about half way between the two ends of the chainber 12.l At the rear of said chamber, and

rSpecification of 'l'.'ettersPatent.Y Ptente'd Dec, 253, 1917, Appiieatin ineaiuy 4,1917. seriaiNo. reasoi. i

preferably in line with the springs 15, lateral abutments or dowels 12b are projected ,downwardly from 'the roof. v i The npper surface of the lower sectionrlO, in conjunction with the side walls of" the chamber y12', forms a guide or track for a travelingclamp or wedge 17, the upper surface of which is parallel to the roof of the chamber 12. This upper surface is preferably not continuous, butv formed by the surfaces of three longitudinal ribs or clamping elements 17', which are adapted toengage the springboard from below, while the dowel 12, the springs 15, and the abutments or dowels 12b engage the upperl surface; of said board.

The wedge or clamp 17 isadjusted longitudinally as follows, in orderto hold the vspringboard firmly in position: At its rear `not turn. The screw 18 extends lengthwise of the springboard holder and is mounted to turn in the lower section 10 thereof, longitudinal movement of said screw beingY prevented by means of collars 178 secured to the screw spindle rigidly and engaging suitable surfaces on the lower section 10.V To lock the screw against turning accidentally, I provide a transverse set screw spindle 20, see Fig. 4:. i

All the parts so far described are preferably made of cast iron, steel or other rela,- tively inexpensive material, vwith Vthe exception of the nut 19 and the screw 18, which are generally made of bronze. These parts are protected by a waterproof casing or top 21 made of steel or cast iron enameled outside and water proofed inside, secured to the basel flange of the lower section 10 by screws 22,v and preferably tted with suitable packing 23 to engage the floor. The upper part yof the casing is recessed to receive a layer of cork 24. At one side, they vent injuringthe limbs. All interiorgparts` ofthe cast iron are covered 'with' a rust proof coating. At the front, the casing 21 has two openings, of which the upper oneA is of rectangular shape for the passage of the springboard end'into the chamber 12, said opening therefore being in line with the inclined upper portion of the chamber 1 2, above the clamp 17. To obtain a tight joint where the springboard passes through this opening, I provide a packing strip or gland 26 of rubber or other suitable material, disposed around the edge of said opening and pressed against a. stationary collar- 27 (secured by screws 27) by means of a movable inwardly tapering follower 28, adjustable lengthwise by screws 29 and'locked in position by nuts 29. This tapering follower will give the board some amplitude or freedom of vibration. At the lower portion of its front wall, the casing 21 has a round opening for the passage of the feed s crew spindle 18, the exposed end of said spindle having a heXagon head 18 and hand wheel 18h, or other suitable means for turning it. A collar or Sleeve 30, threaded both internally and externally, contains a packing 31 in engagement with the shaft or spindle 18, this sleeve being formed with a` flange engaging the inner surface of the casing 21, against which it is drawn by the action of the hanged collar 32 which screws on the outside of the sleeve 30, and engages the outer surface of the casing 21. The packing V31 is compressed by means of al glandv 33 screwing into the sleeve 30 and having an angular or milled head for turning it. The parts 25, 27, 28, 18, 29, 30, 32, 33 are preferably made of brass, but otherwise, the use of this expensive metal may be avoided in my improved construction.

The screws 16 are readily accessible upon removing the casing 21. The upper surfaces of the cast ribs 17 have to beplaned in order to obtain a proper fit against the underside of the springboard units, but this is much less expensive than planing the entire top surface of the clamp or slide or traveling wedge 17. Another advantage of this construction is that the friction between the springboard and the wedge is reduced, thus making it easier to push the wedge forward. Lead washers 22 are preferably interposed betwen the heads of the screws 22 and the casing 21, and this arrangement, together with the packings 23, 26 and 31 will prevent the entrance of water, moisture or vapor into the casing 21, and injury to the parts conta-ined therein. The lead washers 22 prevent injury to the enamel on the casing by the screws. The particular relative arrangement of the springs 15, dowel 12 and abutments 12b insures a firm support for the springboard, in conjunction with the action of the clamp 17. Theribs 17 also have a firmer and more efiicient hold on the board than an unbroken surface would have,

as theV pressure of the clamp is concentrated onY these ribs. Furthermore, these ribs 17 are preferably located out of registry with the springs 15 (see Figs. 5 and 6), thus I claim:

l. A springboard holder having a transverse dowel or cleat and longitudinal springs to engage one side of the springboard, and a movable clamping member to engage the other side of the springboard. 2. A springboard holder having a transverse dowel or cleat, longitudinal springs, and lateral dowels or abutments to engage one-side of the springboard, and a movable clamping member to engage the other side of the springboard.

3. A springboard holder having longitudinal springs and lateral abutments, in line with said springs, to engage one .side of the springboard, and a movable clamping member to engage the other side of the springboard.

4. A springboard holder provided with longitudinal springs to engage one side of the springboard, and a clamping memberv provided with longitudinal ribs to engage the other side of the springboard.

5. A springboard holder provided with longitudinal springs to engage one side of the springboard, and a clamping member provided with longitudinal ribs out of registry with said springs to engage the other side of the springboard.

6. A springboardv holder provided with spaced longitudinal members adapted to engage one side of the springboard, and spaced longitudinal clamping element-s out of registry with the said members to engage the other side of thex springboard.

7. A springboard holder having a pocket or chamber to receive one end of the springboard, a protecting casing provided with an opening in line with said' pocket, and packing means along the edge of said opening.

8. A springboard holder having a pocket or chamber to receive one end of the springboard, means for clamping said end, a protecting casing provided with an opening in line with said pocket, packing means along said opening, an adjusting screw, projecting through said casing for operating the clamping means, and a packing at the point where the screw passes through the casing.

9. A springboard holder having a pocket or chamber to receive one end of the springboard, a protecting casing provided With as my invention, I have signed my name an opening in line with said pocket, and an in presence of tWo subscrlbng witnesses.

`inwardly tapering follower located on the casing at said opening and adapted to ive J' FRANCIS BOORAEM 5 the springboard a. certain freedom of de ec- Witnesses:

tion. JOHN J. WARD,

In testimony, that I claim the foregoing MOR. M. WEINBERG.

Copies of this patent may be obtained for ve cents each, by addressing the "commissioner o! Patente, Washington, D. C. 

